Seed-drill.



a. M. WINWOOD, JR. SEED DRILL.

APPLIGATION FILED OUT. 4, 1912.

L1 3%,% L Patented Mar. 30, 1915.

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SEED-DRILL.

1,133,351.. I Specification of Letters Patent. Pa tenigigdi MLwr, 3Q),1915, Application filed 001701181" 4, 1912. Serial H0. 723,824.

To all whom it may concern: The supporting bar 11 is supported at its Beit known that I, GEORGE M. VVINWOOD, opposite ends by means of arms 14which J12, a citizen of the United States, residing are rigidly securedto the adjacent ends of a at Springfield, in the county of Clark andshaft 15 journaled in bearings 16 on the 5 State of Ohio, have inventedcertain new main frame 1. A spring 17 is secured to the and usefulImprovements in Seed-Drills, of supporting bar at the end thereof and toa which the following is a specification, referfixed part of themachine, preferably the once being had therein to the accompanyinghopper. One or more of these springs may drawing. 7 be provided butpreferably there is one at 10 This invention relates to seed drills.each end of the supporting bar. The point The object of the invention isto improve of connection of the spring with the hopper the constructionof the drill both from a is such that when the supporting bar ismanufacturing and an operating standpoint. moved from its upper to itslower position, To this end I have provided improved means or viceversa, the spring will be carried 15 for connecting the thrust rods withthe supacross the center about which the supporting porting bar.Further, I have provided an bar moves, thus causing it to exert its pulladjustable stop for adjusting the tension of upon the bar in theopposite direction. the springs on the thrust rods. I have also Thus, ifthe lifting bar is elevated to a point provided means to facilitate theraising and just across the line extending through the 2olowering of thesupporting bar for the thrust center of the axis of its movement and therods and to retain this bar in one or the point of connection of thespring to the other of its positions. hopper, the spring will then exertan upward In the accompanying drawings, Figure 1 pull on the bar andmaterially assist in eleis a sectional view taken transversely vatingthe same. The same is true when the 25 throughthe hopper and axle of aseed drill supporting bar is moved downward and then 30 embodying myinvention; Fig. 2 is a secthe spring tends to force the supporting bartional View of the supporting bar for the and thrust rods downward andhold the furthrust rod showing the thrust rod in elevarow opening disk 8in engagement with the tion; Fig. 3 is a perspective view of theadground.

so justable stop for the thrust rod; and Fig. 4 Suitable springs arepreferably interposed is a section taken centrally of said stop. betweenthe supporting bar and the respec- In these drawings I have illustratedone tive thrust rods. As here shown a spring embodiment ofmy inventionand haveshown 18 is coiled about each rod and confined the same inconnection with a drill comprisbetween the lower flange of thesupporting 35 ing a frame 1 carried by an axle 2 on which bar and a stop19 on the rod. Preferably, are mounted ground wheels 3, one of said thisstop is an adjustable stop to enable the wheels only being shown.Mounted upon tension of the spring to be regulated. While the frame 1 isthe usual seed hopper 4, havthis adjustment may be secured in variousing a series of seed delivery devices 5 0011'1- ways that shown in thedrawings affords a 40 municating by means of tubes 6 with seed veryconvenient and easy method of securboots 7 which discharge the seed intoa furing the desired adjustment. As here shown row opened by a furrowopening disk 8. the rod 10 is provided in one edge with The boot 7 isconnected with the forward a series of notches 20 and the clip or stopportion of the frame by means of a drag bar 19 is in the form of acollar extending about 5 9 and has connected to its upper portion a therod and having its rear edge so slotted, thrust rod 10 which extendsupwardly and as indicated at 21, to permit the passage of rearwardlytherefrom and is slidably conthe rod, and provided at its forward edgenected with a supporting bar 11. This supwith a tongue 22 adapted toenter any one porting bar is here shown as formed of angle of thenotches 20. Secured to the collar '50 iron having one flange arrangedsubstan on opposite sides of the slot 20 and extendtially horizontal andprovided with an opening upwardly are tapered fingers 23 adapted ing 12for each thrust rod. The thrust rod to extend between the coils of thespring extends through this opening and is retained and the respectivesides of the rod. These therein by a stop, such as a ring 13,extendfingers are of less thickness at their base 55 ing through the rod10 above the flange 12. than the collar and the lower coil of the springwhich surrounds the finger will rest upon the collar, the finger servingto center the same thereon. The collar is also provided with downwardlyextending arms Qt connected at their lower ends by a cross bar 25 Whichbears normally against that edge of the rod opposite the notches 20. Theconstruction of the clip is such that when in its normal position, asshown in Fig. 2, it will be secured firmly in position with the tonguein one of the notches and will afford a positive stop for the spring. Itcan be very easily manipulated, however, to remove the tongue from thenotch and permit the clip to be adjusted to secure the desired tensionon the spring.

The movement of the supporting bar 11 about the axis of the shaft 15 maybe accomplished in any suitable manner. In the present instance I haveprovided the same with a hand. lever26, of a well known type, which issecured to one end of the shaft and 'afiords a ready means for actuatingthe While I have shown and described one "embodiment of my invention itwill be understood that this has been chosen for the purposes ofillustration only and that I do not desire to be limited to the detailsof.

construction shown and described, for obvious modifications will occurto a person skilled in the art.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. In a seed drill, the combination, with a frame, a seed hopper, and aseries of boots supported beneath said hopper, of a supporting barmovable about an are having a fixed center on said frame, said barhaving a substantially horizontal portion provided with verticalopenings, thrust rods connected with the respective seed boots andextending loosely through the respective openings in'said bar, astopcarried by each rod, a spring carried by each rod and confined betweensaid bar and said stop, means for shifting said bar about said fixedaxis, and a spring connected with said bar and with a fixed part of saidframe and tending to move said bar toward its extreme position on eitherside of the fulcrum thereof.

2. In a seed drill, the combination, with a frame, a seed hopper, a seedboot supported beneath said hopper, and a supporting bar, of a thrustrod connected with said seed Copies of this patent may be obtained forboot and with said supporting bar, said thrust rod having a series ofnotches in one edge thereof, a stop carried by said thrust rod andcomprising two substantially parallel members arranged on opposite sidesof said rod, a collar formed integral with said members, connecting thesame at points between their ends and having an opening in one sidethereof registering with the space between said parallel members, across bar connecting the lower ends of said members, the lower ends ofsaid members and said cross bar being offset from the vertical line ofthe upper portions of said members to enable said cross bar to engagesaid rod on that side thereof adjacent to the opening in said collar, aspring coiled about said rod between said supporting bar and said collarand inclosing the upwardly extending portions of said parallel members.

3. In a seed drill, the combination, with a frame, a seed hopper, and aseed boot supported beneath said hopper, of a supporting bar, armsconnected with said supporting bar and pivotally mounted on said frame,thrust rods connected with said boot and with said supporting bar, and aspring connected with said supporting bar and with a fixed part of saiddrill, the point of connection to said drill being so arranged that themovement of said supporting bar about its axis will cause said spring topass over said axis and thus reverse the direction of its pull on saidbar.

In a seed drill, the combination, with a frame, a seed hopper, and aseed boot supported beneath said hopper, of a supporting bar, armsconnected with said supporting bar and pivotally mounted on said frame,thrust rods connected with said boot and with said supporting bar, and aspring connected to each end of said supporting bar and to the adjacentend of said hopper, the points of connection of said springs to saidhopper being so arranged with relation to said supporting bar that whenthe latter is moved about its axis said springs will. he carried acrosssaid axis and thus reverse the direction of their pull on said bar.

In testimony whereof, I afi'ix my signature in presence of twowitnesses.

GEORGE M. WINWOOD. JR.

Witnesses:

FLORENCE GARRITY, E. F. MGKEE.

five cents each, by addressing the Commissioner of Patents Washington,D. G.

